Jitka is the Czech form of Judith — from the Hebrew Yehudit (woman of Judea). Saint Jitka of Thuringia (c. Jitka Pohlová — Czech artist. Jitka Burianová — Czech artist. Jitka Frantová — Czech historical figure. Jitka Kocurová (born 1976) — Czech actress. Princess Jitka — Czech royal heritage naming. The Czech-American population (~1.4 million in the US, with major communities in Texas, Nebraska, and Illinois) has continued to preserve Czech heritage names through cultural centers and the iconic National Czech & Slovak Museum and Library in Cedar Rapids, Iowa.
Jitka does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Jitka reduce to 6, The Nurturer. This is a traditional interpretive system, not a factual claim about the name.